Civil Engineering - Waste Water Engineering - Discussion

29. 

The spacing of bars for perforations in coarse screens used for the treatment of sewage, is

[A]. 20 mm
[B]. 30 mm
[C]. 40 mm
[D]. 50 mm
[E]. 100 mm.

Answer: Option D

Explanation:

No answer description available for this question.

Sufazo said: (Mar 13, 2017)  
Fine screen = 2 to 3 mm, coarse screen = 50 mm.

Roy said: (Oct 14, 2017)  
40 mm is the correct answer.

Hemraj said: (Sep 1, 2018)  
For large area bar screen 75 to 150 mm.
For sedimentation opening 50 mm.
For medium 30 to 50 mm.
For fine 20 mm.

Krishnendu Chakraborty said: (Dec 28, 2018)  
The Correct Data is;

For Coarse Screen => 50 mm or more.
For Medium Screen => 6 mm to 40 mm.
For Fine Screen => 1.5 mm to 3 mm.

Puku said: (Dec 29, 2018)  
Medium screen 6 to 40 mm, fine screen 1.5 to 3 mm.

Sanket Sangale said: (Sep 27, 2019)  
Coarse screen - above 50 mm,
Medium screen - 20 to 50 mm,
Fine screen - less than 20.

Naveed Kamal Marwat said: (Feb 1, 2021)  
Coarse 50mm.

Fine 2 to 3mm.

Kozhikode said: (Aug 18, 2021)  
Coarse screen 2.5 cm to 5cm.
Fine screen Not more than 6 mm square.

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